Anti-government protesters carry a catapult, used for hurling petrol bombs, at a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters man a barricade at the Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

A fire burns on a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

A fire burns on a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

A fire burns on a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

A priest stands on the barricades at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

A priest stands on the barricades at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

An anti-government protester mans a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

An anti-government protester mans a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

An anti-government protester mans a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters shout "Glory to the Ukraine" as they man a barricade at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's presidency said Friday that it has negotiated a deal intended to end battles between police and protesters that have killed scores and injured hundreds, but European mediators involved in the talks wouldn't confirm a breakthrough. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters reinforce a barricade in central Kiev, Ukraine, late Thursday, Feb. 20, 2014. Protesters advanced on police lines in the heart of the Ukrainian capital on Thursday, prompting government snipers to shoot back and kill scores of people in the country's deadliest day since the breakup of the Soviet Union a quarter-century ago. (AP Photo/Darko Bandic)

Anti-government protesters clap their hands as they watch a live broadcast from the parliament in central Kiev, Ukraine, Friday, Feb. 21, 2014. European officials say Ukrainian protesters have agreed to a deal with Ukraine's president on defusing a deadly political crisis. Earlier Friday President Viktor Yanukovych announced early elections and promised to invite the opposition into the government. (AP Photo/Darko Bandic)

Anti-government protesters man a barricade on the outskirts of Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters man a barricade on the outskirts of Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters man a barricade on the outskirts of Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters man a barricade on the outskirts of Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

A woman cries during a funeral procession for anti-government protesters killed in clashes with the police at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

A woman cries during a funeral procession for anti-government protesters killed in clashes with the police at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

A woman cries during a funeral procession for anti-government protesters killed in clashes with the police at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

A woman cries during a funeral procession for anti-government protesters killed in clashes with the police at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

A woman cries during a funeral procession for anti-government protesters killed in clashes with the police at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters rest at a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraines bloody political crisis moved swiftly toward a possible solution Friday as the opposition signed a deal with the embattled president, and parliament changed the constitution and opened the way for the release of ex-Prime Minister Yulia Tymoshenko. (AP Photo/Darko Bandic)

Anti-government protesters rest at a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraines bloody political crisis moved swiftly toward a possible solution Friday as the opposition signed a deal with the embattled president, and parliament changed the constitution and opened the way for the release of ex-Prime Minister Yulia Tymoshenko. (AP Photo/Darko Bandic)

Anti-government protesters rest at a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraines bloody political crisis moved swiftly toward a possible solution Friday as the opposition signed a deal with the embattled president, and parliament changed the constitution and opened the way for the release of ex-Prime Minister Yulia Tymoshenko. (AP Photo/Darko Bandic)

Anti-government protesters rest at a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraines bloody political crisis moved swiftly toward a possible solution Friday as the opposition signed a deal with the embattled president, and parliament changed the constitution and opened the way for the release of ex-Prime Minister Yulia Tymoshenko. (AP Photo/Darko Bandic)

An anti-government protester raises the Ukrainian flag at a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. European officials say Ukrainian protesters have agreed to a deal with Ukraine's president on defusing a deadly political crisis. Earlier Friday President Viktor Yanukovych announced early elections and promised to invite the opposition into the government. (AP Photo/Darko Bandic)

Anti-government protesters man a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. European officials say Ukrainian protesters have agreed to a deal with Ukraine's president on defusing a deadly political crisis. Earlier Friday President Viktor Yanukovych announced early elections and promised to invite the opposition into the government. (AP Photo/Darko Bandic)

An opposition supporter stands at a barricade near the Presidential office in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's president gave in to pressure from European diplomats and offered concessions Friday to defuse a crisis that has divided his country and left scores dead. Shots rang out near Kiev's protest camp and protesters fought among themselves about what to do next. (AP Photo/Efrem Lukatsky)

An opposition supporter stands at a barricade near the Presidential office in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's president gave in to pressure from European diplomats and offered concessions Friday to defuse a crisis that has divided his country and left scores dead. Shots rang out near Kiev's protest camp and protesters fought among themselves about what to do next. (AP Photo/Efrem Lukatsky)

An opposition supporter stands at a barricade near the Presidential office in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's president gave in to pressure from European diplomats and offered concessions Friday to defuse a crisis that has divided his country and left scores dead. Shots rang out near Kiev's protest camp and protesters fought among themselves about what to do next. (AP Photo/Efrem Lukatsky)

A woman cries during a funeral procession for anti-government protesters killed in clashes with the police at Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

Anti-government protesters man a barricade on the outskirts of Independence Square in Kiev, Ukraine, Friday, Feb. 21, 2014. In a day that could significantly shift Ukraines political destiny, opposition leaders signed a deal Friday with the countrys beleaguered president that calls for early elections, a new constitution and a new unity government. (AP Photo/ Marko Drobnjakovic)

An opposition supporter stands at a barricade near the Presidential office in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's president gave in to pressure from European diplomats and offered concessions Friday to defuse a crisis that has divided his country and left scores dead. Shots rang out near Kiev's protest camp and protesters fought among themselves about what to do next. (AP Photo/Efrem Lukatsky)

Anti-government protesters rest at a barricade in central Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraines bloody political crisis moved swiftly toward a possible solution Friday as the opposition signed a deal with the embattled president, and parliament changed the constitution and opened the way for the release of ex-Prime Minister Yulia Tymoshenko. (AP Photo/Darko Bandic)

Ukrainian lawmakers celebrate after voting new laws in parliament in Kiev, Ukraine, Friday, Feb. 21, 2014. In a fast-moving day that could change Ukraine's political destiny, opposition leaders reached a deal Friday with the country's beleaguered president, and parliament changed the constitution and opened the way for the release of ex-Prime Minister Yulia Tymoshenko.(AP Photo/Andrew Kravchenko, pool)

Opposition supporters dressed in hand-made bullet-proof vests arrive on Kiev's Independence Square to show their support for the opposition in Kiev, Ukraine, Friday, Feb. 21, 2014. Ukraine's president gave in to pressure from European diplomats and offered concessions Friday to defuse a crisis that has divided his country and left scores dead. Shots rang out near Kiev's protest camp and protesters fought among themselves about what to do next.(AP Photo/Efrem Lukatsky)

By ANGELA CHARLTON and JIM HEINTZ

Associated Press Writers

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KIEV, Ukraine — Under heavy pressure from the West following a deadly day of clashes and sniper fire in the capital, President Viktor Yanukovych and opposition leaders struck a deal Friday aimed at bringing Ukraine’s three-month political crisis to an end. But radical protesters and some pro-Russian factions rejected it, leaving lingering doubts over whether peace could be restored.

On a day of electrifying developments, the Ukrainian parliament also opened a path for Yulia Tymoshenko —Yanukovych’s political nemesis — to be let out of prison.

In spite of what looked like a significant government retreat, protesters booed opposition figures who took to a stage Friday evening to present the deal, which cuts Yanukovych’s powers and calls for early elections but falls short of demands for his immediate resignation.

“Death to the criminal!” some chanted, referring to Yanukovych.

“Resign! Resign! Resign!” shouted others as one radical speaker threatened to go on an armed offensive if the opposition doesn’t demand the president’s resignation by Saturday morning.

Addressing the crowd in Kiev’s Independence Square, opposition leader Vitali Klitschko tried to persuade them that Yanukovych had likely given all he was willing to give.

“He’s not going to resign. This isn’t realistic. We have to think about realistic steps,” Klitschko said.

The agreement signed Friday calls for presidential elections to be moved up from March 2015 to no later than December, but many protesters said that is far too late. And it does not address the issue that set off the protests in November — Yanukovych’s abandonment of closer ties with the European Union in favor of a bailout deal with longtime ruler Russia.

The standoff between the government and protesters escalated this week, as demonstrators clashed with police and snipers opened fire in the worst violence the country has seen since the breakup of the Soviet Union a quarter-century ago. The Health Ministry put the death toll at 77 and some opposition figures said it’s even higher.

The U.S., Russia and the 28-nation EU are deeply concerned about the future of Ukraine, a divided nation of 46 million. The country’s western regions want to be closer to the EU and have rejected Yanukovych’s authority in many cities, while eastern Ukraine favors closer ties with Russia.

Hours after the deal was signed, Ukraine’s parliament voted to restore the 2004 constitution that limits presidential authority, clawing back some of the powers that Yanukovych had pushed through for himself after being elected in 2010.

Parliament then voted to fire the interior minister, Vitali Zakharchenko, who is widely despised and blamed for ordering police violence, including the snipers who killed scores of protesters Thursday in Kiev, the capital that has been nearly paralyzed by the protests.

Then the parliament, which once was overwhelmingly pro-Yanukovych, took the bold move of approving a measure that could free arch-rival Tymoshenko, who has served two and a half years on a conviction of abuse of office, charges that domestic and Western critics have denounced as a political vendetta.

Legislators voted to decriminalize the count under which Tymoshenko was imprisoned, meaning that she is no longer guilty of a criminal offense.

“Free Yulia! Free Yulia!” lawmakers chanted.

However, Yanukovych must still sign that bill into law, and then Tymoshenko’s lawyers would have to ask the court for her release from prison in the eastern city of Kharkiv.

Yanukovych fears her popularity. The charismatic blond-braided heroine of the 2004 Orange Revolution — which also drove Yanukovych from the presidency — Tymoshenko served as prime minister and narrowly lost the 2010 presidential election to Yanukovych.

With Yanukovych’s supporters quitting his party one after another Friday, legislators also approved an amnesty for protesters involved in violence.

Under the agreement, Ukrainian authorities also will name a new unity government that includes top opposition figures within 10 days.

The deal was a result of two days and all-night of shuttle diplomacy by top diplomats from Germany, France and Poland, who talked with the president and the opposition.

In Washington, White House press secretary Jay Carney said the deal is consistent with what the Obama administration was advocating, and that the U.S. will closely monitor whether it is fulfilled, holding out the threat of more sanctions if it’s not.

“The agreement is a necessary compromise in order to launch an indispensable political dialogue that offers the only democratic and peaceful way out of the crisis that has already caused too much suffering and bloodshed on all sides,” European Union President Herman Van Rompuy said.

But neither side won all the points it sought, and some vague conditions could ignite strong disputes down the road.

The deal calls for protesters to hand over all their weapons, withdraw from buildings they have occupied and take down the camps they have erected around the country. It is far from clear that the thousands of protesters camped out in Kiev’s Independence Square — known as the Maidan — will pack up and go home.

“I hope that the direction of the country changes, but so far the goals of the Maidan have not been achieved,” said another, 45-year-old Kira Rushnitskaya. “Yanukovych agreed to give up powers to stay in power overall.”

The agreement did not set a deadline for leaving the camp and many protesters are likely to move out slowly, both because of the emotional closeness the camp fostered and because of their distrust that the deal will actually be implemented.

Shots were heard Friday morning, a day after the deadliest violence since Ukraine became independent in 1991. It is unclear who was targeted and whether anyone was hurt or injured. A tense calm prevailed in the square late Friday.

The leader of one of the major radical groups, Pravy Sektor, declared that “the national revolution will continue,” according to the Interfax news agency.

The deal has other detractors, too.

Leonid Slutsky, a Russian lawmaker who chairs the committee in charge of relations with other ex-Soviet nations, told reporters that the agreement serves the interests of the West.

“We realize where and by whom this agreement has been written. It’s entirely in the interests of the United States and other powers, who want to split Ukraine from Russia,” he said.

Russia’s Foreign Ministry issued a statement saying that Russian mediator Vladimir Lukin’s refusal to sign the deal doesn’t mean that Moscow isn’t interested in looking for a compromise to end the bloodshed.

“We will stand ready to continue helping Ukrainians normalize the situation if they ask for it,” it said.

The statement said Ukrainians should take into account all regions in its political transition — apparently referring to the areas in Ukraine’s east and south that have close economic ties to Russia and where some see the protesters as puppets of the West.

In addition to anger over the failed EU deal, protesters across the country are upset over corruption in Ukraine, the lack of democratic rights and the country’s ailing economy, which just barely avoided bankruptcy with the first disbursement of a $15 billion bailout promised by Russia. The recent violence has added to Ukraine’s dire economic troubles.